title: 3,3'-{[(Biphenyl-2,2'-di-yl)bis-(methyl-ene)]bis-(-oxy)}bis-[N-(4-chloro-phen-yl)benzamide].
abstract: In the title compound, C40H30Cl2N2O4, the two benzene rings of the biphenyl unit are twisted with respect to each other, making a dihedral angle of 73.07 (4)°. The benzene rings of the benzamide groups form dihedral angles of 77.09 (5) and 55.48 (6)° with the central biphenyl moiety. In the crystal, mol-ecules are linked through N-H⋯O hydrogen bonds to form a fused R 2 (2)(38) ring motif which forms a supermolecular ribbon network extending along the [100] plane. In the two 4-chloro-phenyl rings, the five C atoms and their attached H atoms are disordered over two sets of sites, with site-occupancy factors of 0.657 (15):0.343 (15) and 0.509 (13):0.491 (13).
authors.affiliation: Orchid Chemicals and Pharmaceuticals Limited, R&D Centre, Chennai 600 119, India.
authors.forename: Raj
authors.initials: R
authors.lastname: Rajadurai
authors.forename: Ramar
authors.initials: R
authors.lastname: Padmanabhan
authors.forename: Soma Sundaram
authors.initials: SS
authors.lastname: Meenakshi Sundaram
authors.forename: Sarkkarai
authors.initials: S
authors.lastname: Ananthan